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Full text of "Ruwenzori expedition, 1934-5 ..."

PRESENTED 



BRITISH MUSEUM (NATURAL HISTORY) 



RUWENZORI EXPEDITION 

1934-5 



VOL. III. No. 5. 



EPHEMEROPTERA AND NEUROPTERA 

D. E. KIMMINS ,,^%y 



LONDON 

PRINTED BY ORDER OF THE TRUSTEES OF THE BRITISH MUSEUM 



Issued 25th February 1939] 



[Price One Shilling 



MADE AND PRINTED IN GREAT BRITAIN BY 
JARROLD AND SONS, LTD., NORWICH AND I/JNDON 



5. 



EPHEMEROPTERA AND NEUROPTERA 



By D. E. KiMMiNS ^ 

/ A n 

(With Plate) 

The following species are represented in the small collection of Ephemeroptera 
and Neuroptfra made by the Ruwenzori Expedition, 1934-5. Unless other- 
wise stated all were collected bj^ Dr. F. W. Edwards. 



EPHEMEROPTERA 

CAENIDAE 

Caenis edwardsi sp. n. 

BAETIDAE 

Centroptilum spp. (3). 

NEUROPTERA 

MYRMELEONIDAE 

Nemoleon notatus (Rambur). 
Creoleon nubifer (Kolbe). 
Macroleon qtiinquemaculatus 
(Hagen). 

ASCALAPHIDAE 

Helicomitus festivus (Rambur). 



NEMOPTERIDAE 

Nemopistha imperatrix (Westwood) . 

HEMEROBIIDAE 

Hemerobius nairobicus Navas. 
H. errans Navas. 
H. elatus Navas. 
Notiobiella ugandensis sp. n. 
Eumicromus africanus (v. d.Weele) . 

CHRYSOPIDAE 

Chrysopa congma Walker. 
Chrysopa baronissa (Navas). 
Ankylopteryx maculata sp. n. 

BITTACIDAE 

Bittaciis weelei Esben-Petersen. 



CAENIDAE 
Caenis edwardsi sp. n. (Fig. i) 
Uganda: Fort Portal, 5000 feet, xii. 34-1.35. 102 

^ (dried). Head dark purplish-brown, eyes blackish. Antennae dark brown. 
Pronohmi brownish, paler than head; meso- and metanota shining brownish. 
Fore-legs not widely separated, smoky-brown except tarsi, which are whitish. 
Middle and hind legs whitish, femora with a brownish apical streak on anterior 
surface. Wings whitish hyaline, C, Sc and R purplish-brown, other veins paler. 

Abdomen yellowish-brown, apices of segments darker. Basal lateral margins 
of 2-6 with small, pale, rounded projections, lateral margins of 7-9 with pale 

in, 5 



io8 



RUWENZORI EXPEDITION 



streaks. Forceps single-segmented, short, slightly curved and pointed, yellowish 
brown. Tails whitish, segments with faint dusky joints. 




Fig. I. — Caenis edwardsi sp. n. («) wing, [b] genitalia from beneatli. 

Length of body, 3 mm. 
Length of wing, 3-5 mm. 

This species is about the size of C. cibaria Etn., but the grey abdomen of the 
of the latter will separate it from C. edwardsi. 

BAETIDAE 

Centroptilum spp. 

Three species of this genus are represented in the collection; two from 
Ruwenzori, Namwamba Valley, 10,200 ft., and one from Kenya, Thika, 4500 ft. 
All are females and in rather poor condition and therefore I shall do no more 
than record the presence of the genus in these districts. Other records of the 
genus on the African continent include Algeria, Sudan, Belgian Congo, and 
South Africa. 

MYRMELEONIDAE 
Nemoleon notatus (Rambur) 

Myrmeleon notatus Rambur, 1842, Ins. Nevr.: 406. Walker, 1853, List Neur. Ins. B.M. 
2:369. Hagen, 1866, Stett. Ent. Z. 27:445. 

Nemoleon notatus (Rambur) Navas, 1909, Mem. Prim. Congr. Nat. Esp. : 147. 

Uganda: Masaka, i ^. 

Distribution. — Senegal, Nigeria, Zululand, Malaga. 

Greoleon nubifer (Ivolbe) 

Creagris nubifer Kolbe, 1897, Deutsch. Ost-Afr. 4, Netzfl.: 25. BankS; 1911, Ann. Ent. 
Soc. Amer. 4 : 15. Navas, 1911, Rev. Zool. Afr. 1:241. Navas, 1912, Rev. Zool. Afr. 1:406. 

Creoleon nubifer (Kolbe), Esben-Petersen, 1928, Beitr. Kennt. Faun. D. S. W. Afrikas, 
2 : 209. 

Creagris damarinus Peringuey, 1910, Ann. S. Afr. Mus. 5: 448. 
Is^enya: Thika, 4500 ft., i , 

Distribution. — East Africa from Abyssinia to Natal; N. Nigeria. 



EPHEMEROPTERA AND NEUROPTERA 



109 



Macroleon quinquemaculatus (Hagen) 

Myrmeleon quinquemaculatus Hagen, 1853, Monatsber. Akad. Berl. :482. 
Formicaleo quinquemaculatus (Hagen) 1866, Stett. Ent. Zeit. 27:405. 
Macroleon quinquemaculatus (Hagen), Banks, 1911, Ann. Ent. Soc. Amer. 4:12. 
Myrmeleon polyzonus Gerstaecker, 1884, Mitth. Naturw. Ver. Neu-Vorpomm. Riigen, 
16:21. 

Myrmeleon rapax Kolbe, 1897, Deutsch. Ost-Afrika, 4, Netzfl.: 20. 

Uganda: Ruwenzori, Kilembe, 4500 ft., i $ ; Masaka, i 
Distribution — East, South, and West Africa. 

There are in the British Museum collections three examples of this species 
labelled by W. F. Kirby as having been part of Walker's series of Myrmeleon 
lethalis. This must have been an error on the part of Kirby or a predecessor, as 
two of the examples entered the Museum after the publication of Walker's 
Catalogue, and all three disagree entirely with Walker's description of lethalis, 
which is a Formicaleon (Banyuttis Navas). 

ASCALAPHIDAE 
Helicomitus festivus (Rambur) 

Bubo festivus Rambur, 1842, Nevropt. : 356. 

A scalaphus festivus (Rambur), Walker, 1853, List. Neur. Ins. B.M. 2:419. 
Encyoposis [1) festivus (Rambur), McLachlan, 1871, J. Linn. Soc, Zool. 11: 264. 
Helicomitus festivus (Rambur), van der Weele, 1907, Notes Leyden Mus. 28:153. 
1908, Coll. Zool. Selys., 8 : 175. 

Uganda: Masaka, 2 

Distribution. — Throughout tropical Africa and Madagascar. 

I suspect that at some future date it may be necessary to divide this species 
into several species or sub-species. Examination of examples from different 
parts of Africa has revealed differences in the vestiture of the extreme base of 
the costa of the anterior wings of the males. Some are clad only with very short, 
fine setae; others with longer black setae, directed basally, and some have a 
large tuft of silky hairs, directed basally. The material in our collections at 
present is insufficient to decide the value of this character as a specific distinc- 
tion, but it seems to me to be worthy of mention. 

NEMOPTERIDAE 
Nemopistha imperatrix (Westwood) 

Nemoptera imperatrix Westwood, 1867, Tr. Ent. Soc. Lend. (3) 5:507. 
Halter imperatrix (Westwood), Kirby, 1900, Ann. Mag. N.H. (3) 6:460. 
Nemopistha imperatrix (Westwood) Navas, 1910, Mem. R. Ac. Ci. Bare. 8 (i8):i3. 
Navas, 1912, Gen. Ins. 136: 13. 

Uganda: Budongo Forest, 7.11.35, i c^. 

The type of this species is a female, labelled "W. Africa." There are other 



no 



RUWENZORI EXPEDITION 



females in the British Museum collections from Ashanti and Gold Coast. This 
male appears to agree reasonably with them in body colouration and also in 
colouration of the hind wings. In particular it has the deep cream apex 
and a paler transverse band across the centre of the brown area before the apex 
of the wing. 

HEMEROBIIDAE 
Hemerobius nairobicus Navas 

Navas, igio, Broteria, Zool., 9:78. 

Uganda: Ruwenzori, Bwamba Pass (West Side), 5500-7500 ft., i.35, i (J. 

Previously recorded only from Nairobi, the type locality. 

This example from Ruwenzori agrees with one in the British Museum from 
Nairobi, determined by Dr. Nathan Banks. To Navas' description I would add 
that the anal plates of the male are each armed with a short spur on the dorsal 
margin, rather before mid-way. 

Hemerobius elatus Navas (Fig. 2) 

Navas, 1914, Voyage Alluaud et Jeannel Afr. Or., Nevropt. : 30. 
Kenya: Aberdare Range, Mt. Ivinangop, 8000 ft., x.34, i ^. 




Fig. 2. — Hemerobius elatus Navas. cJ. (a) wings, {b) tenth sternite and parameres, 

lateral. 

The abdomen of the male type is missing, but I have little doubt that 
Dr. Edward's specimen is conspecific. The wings are narrower than in H. errans, 
and the inner and outer gradates in the anterior wing are farther apart. 

Distribution. — Mt. Kenya. 



EPHEMEROPTE RA AND NEUROPTERA 



III 



Hemerobius errans Navas (Fig. 3) 

Navas, 1914, Voyage Alluaud et Jeannel Afr. Or., Nevropt.: 31. 
Esben-Petersen, 1920, Ann. S. Afr. Mus., 17:508. 

Uganda: Ruwenzori, Nyamgasani Valley, 6400 ft., xii.34-1.35 [D. R. 
Buxton), I 




Fig. 3. — Hemerobius errans Navas. (S. {a) apex of abdomen, lateral. (6) ninth 
sternite, ventral, (c) tenth sternite, parameres and hypandrium, lateral, (d) ditto, 
from behind. (e), parameres from above. 



As the genitalia of so many African species are as yet unfigured, I am using 
the example of H. errans taken by Mr. Buxton to make good one of the omissions. 
Distribution. — Kenya (Mt. I\inangop), Cape Town, Orange Free State. 

Notiobiella ugandensis sp. n. (Fig. 4) 
Uganda: Budongo Forest, 7.ii.35, i cj. 

1^. Head yellowish, with brown markings: — a spot in the centre of the labrum; 
the genae; a triangular patch on each side of the vertex, adjoining the eyes; 
terminal segments of maxillary and labial palpi. Antennae yellowish. Pronotum 
parabolically produced in front, yellowish, with obscure brownish markings 
(possibly the result of decomposition). Meso- and metanota yellowish, with 
brownish spots at wing bases. Legs yellowish. 

Abdomen yellowish. Ninth tergite short, apical margin of ninth sternite 
with a broad shallow excision. Anal plates large, with apices incurved, dilated 



112 



RUWENZORI EXPEDITION 



and truncate. A group of 9-10 trichobothria on the basal half of each anal plate. 
Tenth sternite large, narrow above, its lower angles curved inwards towards 
each other. From the lower half of each apical margin extends a long finger-like 
process directed upwards and in the example before me, crossing its fellow. 




Fig. 4. — Notiobiella ugandensis sp. n. (a) wings, {b) apex of abdomen, left 
lateral, (c) right anal plate from behind, {d) special margin of ninth sternite. [e] 
tenth sternite, aedeagus and parameres from side, (f) aedeagus from above. 
{g) parameres from above. 



Aedeagus in the form of a convex plate, attached by its basal angles to the tenth 
sternite and supporting a large membranous structure, the lower part of which 
appears to be an eversible tube. Apex of the convex plate with a deep rounded 
excision, the resulting lateral angles each armed with three short, stout teeth. 
Parameres with a slender fused stem and somewhat quadrate apical flanges. 

Wings with neuration and pattern as in figure. Veins yellowish -green, the 
cross veins between the first and second branches of the radius, the medius and 



EPHEMEROPTERA AND NEUROPTERA 



cubitus, and the branches of the cubitus in anterior wing dark brown. Ptero- 
stigma in both wings yellowish. 

Length of anterior wing, 6-5 mm. 

Length of posterior wing, 5 mm. 

This species is obviously related to my A'', hargreavesi from Sierra Leone, 
but the form of the anal plate differs from that of any Notiobiella known to me. 
From N. decora Kimmins (Uganda) it differs in its less elongate wings. 



Eumicromus africanus (v. d. Weele) (Fig. 5) 

Micromus africanus. Van der Weele, 1909, in Sjostedt, Kilimandjaro-Meru Exped., 
2 (13), Neuroptera (2) : 17. 

Esben-Petersen, 1928, Ann. Mag. N.H. (10) i : 447, pi. xvi, fig. 3. 




Fig. 5. — Eumicromus africanus (Van der Weele). (J (a) apex of abdomen from side. 
{b) ninth sternite from below, (c) tenth sternite, aedeagus and parameres from side. 

(d) hypandrium from below. ' - 

Uganda: Fort Portal, Mpanga Forest, 4000 ft., 25.1.35, i ^. 

I take this opportunity of figuring the male genitalia of this species. 

Distribution. — Kilimandjaro, Abyssinia, Natal. 



114 



RUWENZORI EXPEDITION 



CHRYSOPIDAE 
Chrysopa congrua Walker 

Walker, 1853, List Neur. Ins. B.M. 2:238. 
Hagen, 1866, Stett. Ent. Zeit., 27:391-2. 

Esben-Petersen, 1915, Eiit. Mitt. 4: 86. id., 1920, Arch. Nat., 84A (9): 158. id., 1928, 
Ann. Mag. N.H. (10) 1:446. 1928, Land SuBwasserf. D. S. W. Afr. II, 4: 219. id., 1930, 
Denks. Akad. Wiss. Wien, 102:205. 

Chrysopa concolor Walker, 1853, List Neur. Ins. B.M. 2:239. 

Chrysopa bequaerti Navas, 1912, Rev. Zool. Afr. 1:409. 

Uganda: Kigezi Distr., Mabungo Camp, 60GO ft., xi.34 (/. Ford), i (J 5 5; 
Fort Portal, 5000 ft., xii.34-1.35, i ^. 

Generally distributed in Africa, except possibly along the Mediterranean 
shores. 

Chrysopa baronissa (Navas) 

Cintameva baronissa Navas, 1921, Rev. Ac. Ci. Zaragoza, 6:73. 

Kenya: Nairobi, Ngong Forest, 6500 ft., 22.x. 34, 2 2 9- 
Previously recorded from East London, Cape Province. 



Ankylopteryx maculata sp. n. (Fig. 6) 




Fig. 6. — Ankylopteryx macitlata sp. n. Wing. 



$. Head greenish-yellow, immaculate ; labrum and clypeus creamy-white. 
Apical segment of maxillary palpus annulated about mid-way with fuscous. 



EPHEMEROPTERA AND NEUROPTERA 



Antennae yellow, longer than anterior wings, basal segment unmarked, dilated 
on its inner surface. Pronotum broader than long, narrower in front than 
behind, anterior margin rounded; in colour yellowish, without brown markings. 
Meso- and metanota yellowish, the former with indications of a pale, fuscous 
transverse band. Legs yellowish, apical segment of tarsi not darker than pre- 
ceding segments; tarsal claws strongly dilated at their bases. Abdomen 
yellowish-green. Wings hyaline, spotted with brown as in fig. Venation green- 
ish, gradate cross- veins and some other cross- veins brown, particularly within 
the brown spots. Stigma indistinct. 

Uganda: Masaka, type $ and i paratype (with abdomen damaged). 

I have been unable to reconcile these specimens satisfactorily with any of 
the described African species, and I have deemed it better to describe them as 
new rather than risk an incorrect distribution record due to an error in deter- 
mination. 

BITTACIDAE 

Bittacus weelei Esben-Petersen 

Bittacus weelei, Esbcn-Petersen, 1913, Rev. Zool. Afr. 3: 142, figs. 7-8. Lestage, 1917, 
Rev. Zool. Afr. 5: 112. Esben-Petersen, 1921, Coll. Zool. Selys, fasc. 5 (2): 139, fig. 160. 
Lestage, 1929, Rev. Zool. Afr. 18:16. 

Bittacus testaceus Weele nec Klug, 1909, in Sjostedt's Kilimandjaro-Meru Exped. 2: 21, 
fig- 3- 

Bittacus negus Navas 1915, Mem. Ac. Ci. Bare, 11 (23): 27 

Uganda: Masaka, i ^. 

Distribution. — Tanganyika (Kilimandjaro), Belgian Congo, Uganda, Nyasa- 
land, Sudan (Darfur and Nuba Mts.), Cameroons, Nigeria (Northern Provinces). 

In a cleared example the claspers of the ninth tergite appear less broad at 
the base than inEsben-Petersen's figure, and they carry, each on its inner surface 
towards the base, a short finger-like projection terminating in a tuft of setae. 
Inner apical surfaces armed with about a dozen short, black spines. 



Plate X 
Uganda : Bunyoro 
Path through Budongo Forest 
Habitat of Notiobiella ugandensis Kimmins 



PRESENTED 

15 MAR 1939 



RUWENZORI EXPEDITION — ' 



•VOL. Ill 



PLATE X 




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